John Kelly Obituary, Cause of Death: Chicago Dentist and Army Veteran Remembered by Family
John Joseph Kelly II, formerly of Lincolnwood, Illinois, passed away peacefully in the early hours of October 6, 2026. He was remembered as a longtime Chicago dentist, United States Army veteran, devoted husband, father, grandfather and friend whose life centered on family, service and a decades-long commitment to dentistry.
Known as John to many and Jack to family members and close friends, he leaves behind his wife of more than 60 years, Mary Patricia “Mary Pat” Kelly, as well as his children, grandchildren, extended family and many friends.
John Kelly Cause of Death
John Kelly died peacefully in the early hours of October 6, 2026, according to information provided by his family.
The specific cause of death was not disclosed in the available obituary. No additional medical details or circumstances surrounding his passing were provided.
Key Details
Detail Information
Full Name John Joseph Kelly II
Known As John and Jack
Born January 25, 1938
Birthplace Chicago, Illinois
Former Residence Lincolnwood, Illinois
Date of Death October 6, 2026
Cause of Death Not disclosed
Profession Dentist
Military Service United States Army veteran
Dentistry Career Approximately 35 years
Wife Mary Patricia “Mary Pat” Kelly
Family Children and grandchildren
Early Life and Education
John Joseph Kelly II was born in Chicago on January 25, 1938, to John and Helen (Weber) Kelly.
He attended Loyola Academy before continuing his education at Loyola University. He later earned his Doctor of Dental Surgery (DDS) degree from Loyola University, establishing the foundation for a professional career dedicated to dentistry.
His education prepared him for decades of service to patients throughout Chicago’s North Side.
John Kelly’s Dentistry Career
John practiced dentistry on Chicago’s North Side for approximately 35 years, building a career that allowed him to serve generations of patients.
His long professional career made dentistry an important part of his connection to the Chicago community. Beyond his work, however, those who knew him personally remembered him for the warmth, kindness and friendships he developed throughout his life.
His professional dedication was one part of a much broader legacy shaped by family, service and relationships.
Military Service
John was also a United States Army veteran, adding military service to a life already marked by professional commitment and dedication to others.
His service formed another important part of the life remembered by his family and friends, alongside his decades as a dentist and his role within his family.
Family and Legacy
Perhaps most importantly to those closest to him, John was a devoted husband, father and grandfather.
His marriage to Mary Pat lasted for more than six decades, reflecting a longstanding family partnership that remained central to his life. His children, grandchildren, relatives and friends will carry forward memories of the years they shared with him.
John Kelly’s legacy extends across his family, his military service, his dental career and the many personal relationships he developed throughout his lifetime.
Funeral and memorial arrangements were not included in the information provided here and may be announced by the family.
